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The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
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The https:// ensures that you are connecting to the
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and transmitted securely.
Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1987 | 1 |
| 1988 | 1 |
| 1993 | 1 |
| 1994 | 1 |
| 1995 | 1 |
| 1996 | 1 |
| 1998 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2003 | 1 |
| 2004 | 1 |
| 2005 | 7 |
| 2006 | 31 |
| 2007 | 93 |
| 2008 | 383 |
| 2009 | 851 |
| 2010 | 1672 |
| 2011 | 1614 |
| 2012 | 1779 |
| 2013 | 1863 |
| 2014 | 1532 |
| 2015 | 784 |
| 2016 | 4074 |
| 2017 | 4909 |
| 2018 | 5768 |
| 2019 | 6026 |
| 2020 | 6997 |
| 2021 | 7116 |
| 2022 | 6125 |
| 2023 | 4294 |
| 2024 | 940 |